The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 21, 1977
Filed:
May. 30, 1974
Applicant:
Inventors:
Assignee:
Kureha Kagaku Kogyo Kabushiki Kaisha, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ; C25B / ;
U.S. Cl.
CPC ...
204252 ; 204258 ; 204266 ; 204296 ;
Abstract
A diaphragm for electrolytic production of caustic alkali which consists of dual microporous layers provided on the anode and cathode sides, wherein the anode side microporous layer is made of an acid-resistant material 0.01 to 0.3 millimeter thick bored with micropores having a mean diameter of 0.05 to 1.5 microns, and the cathode side microporous layer is formed of an alkali-resistant material 1 to 6 millimeters thick bored with micropores having a diameter of 3 to 100 microns.
Nakamura, Tadashi. (1977). Diaphragm for electrolytic production of caustic alkali (U.S. Patent No. 4031000). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4031000
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile